1426cd3b3a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see". Backported from #70885.
562 lines
34 KiB
C++
562 lines
34 KiB
C++
/**************************************************************************/
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/* error_macros.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef ERROR_MACROS_H
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#define ERROR_MACROS_H
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#include "core/safe_refcount.h"
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#include "core/typedefs.h"
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/**
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* Error macros. Unlike exceptions and asserts, these macros try to maintain consistency and stability
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* inside the code. It is recommended to always return processable data, so in case of an error,
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* the engine can keep working well.
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* In most cases, bugs and/or invalid data are not fatal and should never allow a perfectly running application
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* to fail or crash.
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*/
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/**
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* Pointer to the error macro printing function. Reassign to any function to have errors printed
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*/
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/** Function used by the error macros */
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// function, file, line, error, explanation
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enum ErrorHandlerType {
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ERR_HANDLER_ERROR,
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ERR_HANDLER_WARNING,
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ERR_HANDLER_SCRIPT,
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ERR_HANDLER_SHADER,
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};
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class String;
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typedef void (*ErrorHandlerFunc)(void *, const char *, const char *, int p_line, const char *, const char *, ErrorHandlerType p_type);
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struct ErrorHandlerList {
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ErrorHandlerFunc errfunc;
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void *userdata;
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ErrorHandlerList *next;
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ErrorHandlerList() {
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errfunc = nullptr;
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next = nullptr;
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userdata = nullptr;
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}
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};
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void add_error_handler(ErrorHandlerList *p_handler);
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void remove_error_handler(ErrorHandlerList *p_handler);
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void _err_print_error(const char *p_function, const char *p_file, int p_line, const char *p_error, ErrorHandlerType p_type = ERR_HANDLER_ERROR);
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void _err_print_error(const char *p_function, const char *p_file, int p_line, const String &p_error, ErrorHandlerType p_type = ERR_HANDLER_ERROR);
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void _err_print_error(const char *p_function, const char *p_file, int p_line, const char *p_error, const char *p_message, ErrorHandlerType p_type = ERR_HANDLER_ERROR);
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void _err_print_error(const char *p_function, const char *p_file, int p_line, const String &p_error, const char *p_message, ErrorHandlerType p_type = ERR_HANDLER_ERROR);
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void _err_print_error(const char *p_function, const char *p_file, int p_line, const char *p_error, const String &p_message, ErrorHandlerType p_type = ERR_HANDLER_ERROR);
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void _err_print_error(const char *p_function, const char *p_file, int p_line, const String &p_error, const String &p_message, ErrorHandlerType p_type = ERR_HANDLER_ERROR);
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void _err_print_index_error(const char *p_function, const char *p_file, int p_line, int64_t p_index, int64_t p_size, const char *p_index_str, const char *p_size_str, const char *p_message = "", bool fatal = false);
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void _err_print_index_error(const char *p_function, const char *p_file, int p_line, int64_t p_index, int64_t p_size, const char *p_index_str, const char *p_size_str, const String &p_message, bool fatal = false);
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void _err_flush_stdout();
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#ifndef _STR
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#define _STR(m_x) #m_x
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#define _MKSTR(m_x) _STR(m_x)
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#endif
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#define _FNL __FILE__ ":"
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/** An index has failed if m_index<0 or m_index >=m_size, the function exits */
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#ifdef __GNUC__
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//#define FUNCTION_STR __PRETTY_FUNCTION__ - too annoying
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#define FUNCTION_STR __FUNCTION__
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#else
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#define FUNCTION_STR __FUNCTION__
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#endif
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// Don't use this directly; instead, use any of the CRASH_* macros
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#ifdef _MSC_VER
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#define GENERATE_TRAP \
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__debugbreak(); \
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/* Avoid warning about control paths */ \
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for (;;) { \
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}
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#else
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#define GENERATE_TRAP __builtin_trap();
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#endif
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// (*): See https://stackoverflow.com/questions/257418/do-while-0-what-is-it-good-for
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`, prints a generic
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* error message and returns from the function. This macro should be preferred to
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* `ERR_FAIL_COND` for bounds checking.
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*/
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#define ERR_FAIL_INDEX(m_index, m_size) \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size)); \
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return; \
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} else \
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((void)0)
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`, prints a custom
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* error message and returns from the function. This macro should be preferred to
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* `ERR_FAIL_COND_MSG` for bounds checking.
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*/
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#define ERR_FAIL_INDEX_MSG(m_index, m_size, m_msg) \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size), m_msg); \
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return; \
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} else \
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((void)0)
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`,
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* prints a generic error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V` for bounds checking.
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*/
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#define ERR_FAIL_INDEX_V(m_index, m_size, m_retval) \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size)); \
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return m_retval; \
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} else \
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((void)0)
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`,
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* prints a custom error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V_MSG` for bounds checking.
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*/
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#define ERR_FAIL_INDEX_V_MSG(m_index, m_size, m_retval, m_msg) \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size), m_msg); \
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return m_retval; \
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} else \
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((void)0)
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/**
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* If `m_index` is greater than or equal to `m_size`,
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* prints a generic error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V` for unsigned bounds checking.
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*/
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#define ERR_FAIL_UNSIGNED_INDEX(m_index, m_size) \
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if (unlikely((m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size)); \
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return; \
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} else \
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((void)0)
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/**
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* If `m_index` is greater than or equal to `m_size`,
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* prints a generic error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V` for unsigned bounds checking.
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*/
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#define ERR_FAIL_UNSIGNED_INDEX_V(m_index, m_size, m_retval) \
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if (unlikely((m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size)); \
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return m_retval; \
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} else \
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((void)0)
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/**
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* If `m_index` is greater than or equal to `m_size`,
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* prints a custom error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V_MSG` for unsigned bounds checking.
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*/
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#define ERR_FAIL_UNSIGNED_INDEX_V_MSG(m_index, m_size, m_retval, m_msg) \
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if (unlikely((m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size), m_msg); \
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return m_retval; \
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} else \
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((void)0)
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`,
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* crashes the engine immediately with a generic error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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* This macro should be preferred to `CRASH_COND` for bounds checking.
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*/
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#define CRASH_BAD_INDEX(m_index, m_size) \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size), "", true); \
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_err_flush_stdout(); \
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GENERATE_TRAP \
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} else \
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((void)0)
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`,
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* crashes the engine immediately with a custom error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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* This macro should be preferred to `CRASH_COND` for bounds checking.
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*/
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#define CRASH_BAD_INDEX_MSG(m_index, m_size, m_msg) \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size), m_msg, true); \
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_err_flush_stdout(); \
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GENERATE_TRAP \
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} else \
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((void)0)
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/**
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* If `m_index` is greater than or equal to `m_size`,
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* crashes the engine immediately with a generic error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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* This macro should be preferred to `CRASH_COND` for bounds checking.
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*/
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#define CRASH_BAD_UNSIGNED_INDEX(m_index, m_size) \
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if (unlikely((m_index) >= (m_size))) { \
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_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size), "", true); \
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_err_flush_stdout(); \
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GENERATE_TRAP \
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} else \
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((void)0)
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/**
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* If `m_param` is `null`, prints a generic error message and returns from the function.
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*/
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#define ERR_FAIL_NULL(m_param) \
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if (unlikely(!m_param)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter \"" _STR(m_param) "\" is null."); \
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return; \
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} else \
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((void)0)
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/**
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* If `m_param` is `null`, prints a custom error message and returns from the function.
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*/
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#define ERR_FAIL_NULL_MSG(m_param, m_msg) \
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if (unlikely(!m_param)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter \"" _STR(m_param) "\" is null.", m_msg); \
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return; \
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} else \
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((void)0)
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/**
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* If `m_param` is `null`, prints a generic error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_NULL_V(m_param, m_retval) \
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if (unlikely(!m_param)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter \"" _STR(m_param) "\" is null."); \
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return m_retval; \
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} else \
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((void)0)
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/**
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* If `m_param` is `null`, prints a custom error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_NULL_V_MSG(m_param, m_retval, m_msg) \
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if (unlikely(!m_param)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter \"" _STR(m_param) "\" is null.", m_msg); \
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return m_retval; \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, prints a generic error message and returns from the function.
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*/
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#define ERR_FAIL_COND(m_cond) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true."); \
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return; \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, prints a custom error message and returns from the function.
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*/
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#define ERR_FAIL_COND_MSG(m_cond, m_msg) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true.", m_msg); \
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return; \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, crashes the engine immediately with a generic error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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*/
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#define CRASH_COND(m_cond) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Condition \"" _STR(m_cond) "\" is true."); \
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_err_flush_stdout(); \
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GENERATE_TRAP \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, crashes the engine immediately with a custom error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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*/
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#define CRASH_COND_MSG(m_cond, m_msg) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Condition \"" _STR(m_cond) "\" is true.", m_msg); \
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_err_flush_stdout(); \
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GENERATE_TRAP \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, prints a generic error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_COND_V(m_cond, m_retval) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Returned: " _STR(m_retval)); \
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return m_retval; \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, prints a custom error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_COND_V_MSG(m_cond, m_retval, m_msg) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Returned: " _STR(m_retval), m_msg); \
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return m_retval; \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, prints a custom error message and continues the loop the macro is located in.
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*/
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#define ERR_CONTINUE(m_cond) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Continuing."); \
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continue; \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, prints a custom error message and continues the loop the macro is located in.
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*/
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#define ERR_CONTINUE_MSG(m_cond, m_msg) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Continuing.", m_msg); \
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continue; \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, prints a generic error message and breaks from the loop the macro is located in.
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*/
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#define ERR_BREAK(m_cond) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Breaking."); \
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break; \
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} else \
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((void)0)
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/**
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* If `m_cond` evaluates to `true`, prints a custom error message and breaks from the loop the macro is located in.
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*/
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#define ERR_BREAK_MSG(m_cond, m_msg) \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Breaking.", m_msg); \
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break; \
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} else \
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((void)0)
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/**
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* Prints a generic error message and returns from the function.
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*/
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#define ERR_FAIL() \
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if (true) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method failed."); \
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return; \
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} else \
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((void)0)
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/**
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* Prints a custom error message and returns from the function.
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*/
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#define ERR_FAIL_MSG(m_msg) \
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if (true) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method failed.", m_msg); \
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return; \
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} else \
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((void)0)
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/**
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* Prints a generic error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_V(m_retval) \
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if (true) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method failed. Returning: " __STR(m_retval)); \
|
|
return m_retval; \
|
|
} else \
|
|
((void)0)
|
|
|
|
/**
|
|
* Prints a custom error message and returns the value specified in `m_retval`.
|
|
*/
|
|
#define ERR_FAIL_V_MSG(m_retval, m_msg) \
|
|
if (true) { \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method failed. Returning: " __STR(m_retval), m_msg); \
|
|
return m_retval; \
|
|
} else \
|
|
((void)0)
|
|
|
|
/**
|
|
* Crashes the engine immediately with a generic error message.
|
|
* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
|
|
*/
|
|
#define CRASH_NOW() \
|
|
if (true) { \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Method failed."); \
|
|
_err_flush_stdout(); \
|
|
GENERATE_TRAP \
|
|
} else \
|
|
((void)0)
|
|
|
|
/**
|
|
* Crashes the engine immediately with a custom error message.
|
|
* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
|
|
*/
|
|
#define CRASH_NOW_MSG(m_msg) \
|
|
if (true) { \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Method failed.", m_msg); \
|
|
_err_flush_stdout(); \
|
|
GENERATE_TRAP \
|
|
} else \
|
|
((void)0)
|
|
|
|
/**
|
|
* Prints an error message without returning.
|
|
*/
|
|
#define ERR_PRINT(m_string) \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string)
|
|
|
|
/**
|
|
* Prints an error message without returning, but only do so once in the application lifecycle.
|
|
* This can be used to avoid spamming the console with error messages.
|
|
*/
|
|
#define ERR_PRINT_ONCE(m_string) \
|
|
if (true) { \
|
|
static bool first_print = true; \
|
|
if (first_print) { \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string); \
|
|
first_print = false; \
|
|
} \
|
|
} else \
|
|
((void)0)
|
|
|
|
/**
|
|
* Prints a warning message without returning. To warn about deprecated usage,
|
|
* use `WARN_DEPRECATED` or `WARN_DEPRECATED_MSG` instead.
|
|
*/
|
|
#define WARN_PRINT(m_string) \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string, ERR_HANDLER_WARNING)
|
|
|
|
/**
|
|
* Prints a warning message without returning, but only do so once in the application lifecycle.
|
|
* This can be used to avoid spamming the console with warning messages.
|
|
*/
|
|
#define WARN_PRINT_ONCE(m_string) \
|
|
if (true) { \
|
|
static bool first_print = true; \
|
|
if (first_print) { \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string, ERR_HANDLER_WARNING); \
|
|
first_print = false; \
|
|
} \
|
|
} else \
|
|
((void)0)
|
|
|
|
/**
|
|
* Prints a generic deprecation warning message without returning.
|
|
* This should be preferred to `WARN_PRINT` for deprecation warnings.
|
|
*/
|
|
#define WARN_DEPRECATED \
|
|
if (true) { \
|
|
static SafeFlag warning_shown; \
|
|
if (!warning_shown.is_set()) { \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "This method has been deprecated and will be removed in the future.", ERR_HANDLER_WARNING); \
|
|
warning_shown.set(); \
|
|
} \
|
|
} else \
|
|
((void)0)
|
|
|
|
/**
|
|
* Prints a custom deprecation warning message without returning.
|
|
* This should be preferred to `WARN_PRINT` for deprecation warnings.
|
|
*/
|
|
#define WARN_DEPRECATED_MSG(m_msg) \
|
|
if (true) { \
|
|
static SafeFlag warning_shown; \
|
|
if (!warning_shown.is_set()) { \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "This method has been deprecated and will be removed in the future.", m_msg, ERR_HANDLER_WARNING); \
|
|
warning_shown.set(); \
|
|
} \
|
|
} else \
|
|
((void)0)
|
|
|
|
/**
|
|
* This should be a 'free' assert for program flow and should not be needed in any releases,
|
|
* only used in dev builds.
|
|
*/
|
|
#ifdef DEV_ENABLED
|
|
#define DEV_ASSERT(m_cond) \
|
|
if (unlikely(!(m_cond))) { \
|
|
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: DEV_ASSERT failed \"" _STR(m_cond) "\" is false."); \
|
|
_err_flush_stdout(); \
|
|
GENERATE_TRAP \
|
|
} else \
|
|
((void)0)
|
|
#else
|
|
#define DEV_ASSERT(m_cond)
|
|
#endif
|
|
|
|
/**
|
|
* These should be 'free' checks for program flow and should not be needed in any releases,
|
|
* only used in dev builds.
|
|
*/
|
|
#ifdef DEV_ENABLED
|
|
#define DEV_CHECK(m_cond) \
|
|
if (unlikely(!(m_cond))) { \
|
|
ERR_PRINT("DEV_CHECK failed \"" _STR(m_cond) "\" is false."); \
|
|
} else \
|
|
((void)0)
|
|
#else
|
|
#define DEV_CHECK(m_cond)
|
|
#endif
|
|
|
|
#ifdef DEV_ENABLED
|
|
#define DEV_CHECK_ONCE(m_cond) \
|
|
if (unlikely(!(m_cond))) { \
|
|
ERR_PRINT_ONCE("DEV_CHECK_ONCE failed \"" _STR(m_cond) "\" is false."); \
|
|
} else \
|
|
((void)0)
|
|
#else
|
|
#define DEV_CHECK_ONCE(m_cond)
|
|
#endif
|
|
|
|
#endif // ERROR_MACROS_H
|